What does LHA do?#
LHA (lipohydroxy acid) is a gentle, oil-soluble exfoliant derived from salicylic acid that works gradually to help promote smoother, clearer-looking skin. Its lipophilic nature and slow action make it a gentle exfoliating option, well-suited for those who want a gradual approach.
Benefits
- Helps promote smoother, more refined-looking skin texture
- Supports clearer-looking pores with a gentle, gradual approach
- Works cell by cell rather than all at once, for a gradual approach to surface exfoliation
How it works
LHA is a lipophilic (oil-loving) exfoliant that gently smooths away dull surface buildup for smoother, brighter-looking skin. Its larger, oil-loving structure means it sinks in more slowly than salicylic acid does, so it works gradually rather than all at once. The result is clearer, more refined-looking skin over time.
How to use LHA#
How often
Ease in gradually, following the frequency on the pack. Daily use is within the usual guidance once your skin is used to it.
Where it goes
It comes in two forms and they belong in different steps — a cleanser at the washing stage, a leave-on serum as a targeted step.
Where to apply
Across the whole area rather than dabbed onto single spots.
Sun
A leave-on LHA serum calls for daily sunscreen while you are using it; the cleanser rinses off and does not.
Alongside others
Follow it with a moisturizer.
Stick to one exfoliating product at a time — two on the same skin in the same session is what usually causes the stinging.
Keep the leave-on to a different evening from retinol, or use the acid in the morning and the retinoid at night, which is how the studies ran it.
What to expect
Dryness and a brief sting on application are the things most likely to show up first.
If it doesn't suit
If it starts to feel tight or drying, use it less often rather than pushing through.
This product contains an exfoliating ingredient that may increase your skin's sensitivity to the sun. Discontinue use if irritation occurs and consult a healthcare provider.
Forms you will see it in
LHA exfoliating cleanser
- Where it goes
- Your wash, morning or evening
- How often
- Up to daily
- Strength
- Gentle
- Sun sensitivity
- None
LHA exfoliating serum
- Where it goes
- Before moisturizer, morning or evening
- How often
- Up to daily
- Strength
- Gentle
- Sun sensitivity
- SPF next morning
Using LHA with other ingredients
Pairs well with LHA
Hyaluronic Acid
Works well togetherHyaluronic acid provides hydration that helps offset any dryness from exfoliation.
What not to use with LHA
Azelaic acid
Different timesBoth are active on the skin’s surface and combining them can increase the chance of irritation.
Cysteamine
Different timesThese two are better applied on separate evenings rather than layered together.
Eye-area retinol
Different timesThe eye area is thinner and takes longer to settle, so keep exfoliants to a different evening from your eye retinol.
Other exfoliants
Different timesMore than one exfoliant at once can feel drying, so they’re best kept to separate evenings.
Enzyme Exfoliants · Glycolic Acid (AHA) · Lactic Acid (AHA) · PHA (Polyhydroxy Acid) · Salicylic Acid (BHA)
Retinoids
Different timesRetinoids and exfoliants can both feel drying, so they’re best kept to separate evenings.
Vitamin C
Different timesVitamin C and exfoliants are more comfortable at different times than layered in one routine.
Who should avoid LHA?#
Six situations change whether LHA suits your skin right now. Each one is either a reason to skip it, a reason to go slowly, or nothing to watch for.
- Fragile or Sensitive
- Skip it
- Recent Facial or Laser
- Skip it
- Prone to Redness
- Go slowly
- Dry or Itchy Patches
- Go slowly
- Recent Shave or Wax
- Go slowly
- Maternity & Nursing
- No caution
Prone to Redness — Try it on a small area first, and use it less often — or stop — if you notice stinging or extra redness.
Dry or Itchy Patches — Keep the rest of your routine well moisturized, and use it less often — or stop — if you notice tightness or itching.
Recent Shave or Wax — Avoid for 24 hours after waxing, threading, or dermaplaning.
Cosmetic strength limits for LHA where you live#
| Region | Most a cosmetic may contain | |
|---|---|---|
| No explicit cap | ||
The FDA restricts a short list of ingredients and sets no general strength ceiling on the rest. A figure marked "guidance, not law" is the Cosmetic Ingredient Review panel's recommendation. 21 CFR part 700, subpart B — Requirements for Specific Cosmetic Products (FDA) | ||
| No explicit cap | ||
One list does the work — Health Canada's Hotlist of prohibited and restricted cosmetic ingredients. | ||
| No explicit cap | ||
The Cosmetics Regulation's annexes, consolidated to 1 May 2026. A figure marked "guidance, not law" comes from the EU's cosmetic safety committee rather than from the annexes. | ||
| No explicit cap | ||
Great Britain kept the annexes as its own law and updates them only when it chooses; Northern Ireland follows the live EU Regulation, which is why some rows read differently for each. Regulation (EC) No 1223/2009 as it applies in Great Britain · Regulation (EC) No 1223/2009, Annexes II–VI | ||
| No explicit cap | ||
India writes its own standard, aligned to the European rules as they stood in 2012. Mandatory since 9 February 2026. IS 4707 (Part 2):2025 — restricted and prohibited cosmetic ingredients · IS 4707 (Part 3):2025 — preservatives · Cosmetics Rules, 2020, Ninth Schedule | ||
| No explicit cap | ||
ANVISA rewrote its restricted list in June 2026, and a companion act amended the prohibited list at the same time. RDC 1.029/2026 — restricted ingredients · RDC 529/2021 — prohibited ingredients, as amended by RDC 1.030/2026 · RDC 528/2021 — preservatives | ||
| No explicit cap | ||
Japan's cosmetics standard keeps drug ingredients out of cosmetics, so most of its figures sit in the ministry's list of the ones a cosmetic may still contain. Cosmetics Standards (化粧品基準), Ministry of Health, Labour and Welfare · Cosmetics Standards — the ministry's own English translation · Drug ingredients permitted in cosmetics — 2007 notification | ||
| No cap (leave-on products must be pH 3.0–9.0) | ||
One MFDS regulation carries both the prohibited list and the restricted list, in force 18 March 2026. Sunscreens and a few other categories are cleared product by product instead. Regulation on Safety Standards for Cosmetics (MFDS Notification 2026-19) · Regulation on the Review of Functional Cosmetics (MFDS Notification 2025-88) | ||
| No explicit cap | ||
Kenya's standard applies the EU annexes as they stand rather than copying them, so its ingredient limits are the EU's — including the 2024 additions. A figure marked "guidance, not law" sits outside the annexes and does not carry over. KS EAS 377-1, -2 and -3:2022 — cosmetics safety requirements, published by KEBS · Regulation (EC) No 1223/2009, Annexes II–VI | ||
| No explicit cap | ||
Namibia sets no ingredient limits at all. Its cosmetic rule is a single line requiring a product to be free of any harmful ingredient. Foodstuffs, Cosmetics and Disinfectants Ordinance 18 of 1979, and the regulations under it | ||
| No explicit cap | ||
Ukraine's own transposition of the EU annexes, as they stood before the 2024 additions, fully in force since 3 August 2026. A further revision is due on 1 February 2027. Technical Regulation on cosmetic products — Cabinet Resolution No. 65 of 20 January 2021 | ||
| No explicit cap | ||
Georgia has no cosmetics rulebook — its register of technical regulations carries no cosmetics entry — so only the general product-safety duty applies. | ||
| No explicit cap | ||
Australia writes no cosmetic ingredient list. A figure here is the point at which a substance becomes a medicine or a scheduled substance carrying Caution labeling, so its numbers sit well above other markets'. Poisons Standard — June 2026 · Therapeutic Goods (Excluded Goods) Determination 2018 | ||
| No explicit cap | ||
The Gulf standard points at the EU annexes as amended, so its ingredient limits are the EU's. A figure marked "guidance, not law" sits outside the annexes and does not carry over. GSO 1943:2024 — Cosmetic products: safety requirements (Gulf technical regulation) · Regulation (EC) No 1223/2009, Annexes II–VI | ||
| No explicit cap | ||
The Gulf standard points at the EU annexes as amended, so its ingredient limits are the EU's. A figure marked "guidance, not law" sits outside the annexes and does not carry over. GSO 1943:2024 — Cosmetic products: safety requirements (Gulf technical regulation) · Regulation (EC) No 1223/2009, Annexes II–VI | ||
| No explicit cap | ||
Hong Kong writes no cosmetics rulebook. Its Poisons List (Cap. 138A, Schedule 10) decides which substances may be sold only as medicines, and general safety is judged case by case against whichever overseas standard the enforcer considers reasonable. Pharmacy and Poisons Regulations (Cap. 138A), Schedule 10 — the poisons list · Pharmacy and Poisons Board — Guidance Notes on classifying pharmaceutical products, April 2026 | ||
| No explicit cap | ||
Singapore writes the ASEAN annexes into its own schedule, and its regulator tells companies to check the current ASEAN release as well — which is why a figure here can read "guidance, not law". Health Products (Cosmetic Products — ASEAN Cosmetic Directive) Regulations 2007, Third Schedule · ASEAN Cosmetic Directive annexes — release 2026-1, 22 June 2026 | ||
| No explicit cap | ||
Brunei carries the 2007 ASEAN annexes in its own schedule and has not updated them since, so it reads differently from Singapore on several ingredients. Medicines (Cosmetic Products) Regulations (Cap. 285 Rg 1), Schedule 1 — revised edition 2024 | ||
| No explicit cap | ||
Jordan's cosmetic rules defer to "the approved references" and name none of them, so there is no Jordanian figure to read. The only number in the instrument governs the ingredient list on the pack. JFDA instructions on cosmetics and pharmaceutical cosmetics, 2026 | ||
| No explicit cap | ||
Trinidad and Tobago has had the power to set cosmetic standards since 1960 and has never used it. The regulations made under the Act cover food and drugs, with no cosmetics part; what binds is the Act's general rule against selling a cosmetic that may injure the user. Food and Drugs Act, Chap. 30:01 · Food and Drugs Regulations | ||
Where a figure appears, that is the maximum strength allowed or advised for lha in that market — some are set in cosmetics regulation, others are the ceiling a cosmetic safety panel recommends. Where no figure appears, the market either sets no cosmetic maximum or handles this ingredient outside its cosmetic rules. These are limits, not targets — the right strength for a formula is the formulator's decision.
Open a market to see the rulebook its figure comes from. Those notes describe each market's own rules as we read them, current to August 24, 2026; the linked documents are the authority, and nothing here is legal advice.
Sample products with LHA#
A few well-known products, not a full list — product names are each brand's own. We don't sell them — the shop prices them in US dollars and ships from Hong Kong, so delivery and duties come on top. It may not ship everywhere.
We may earn a small commission when you buy through these links.
Cleansers · 3
Already have one? Check how it fits your skin with Pick.
Common questions about LHA#
What is LHA?
- An oil-loving relative of salicylic acid that sinks in slowly, so it clears away surface build-up a little at a time rather than all at once.
What else is LHA called?
- On a label you may see Capryloyl salicylic acid.
When should you apply LHA?
- Morning or evening.
Which form of LHA should you use?
- LHA exfoliating cleanser — your wash, morning or evening, up to daily. LHA exfoliating serum — before moisturizer, morning or evening, up to daily.
How often can you use LHA?
- Up to daily.
Where do you apply LHA?
- All over the face. Keep it away from your eyes and lips.
Can you use LHA around the eyes?
- Yes. LHA goes all over the face, the skin around the eyes included — keep it out of your eyes and off your lips.
Does LHA make skin more sensitive to the sun?
- Only as the LHA exfoliating serum — use sunscreen the next morning. The other form is not flagged.
What should you not use with LHA?
- Space it apart from Azelaic acid, Cysteamine, Eye-area retinol, Other exfoliants, Retinoids and Vitamin C.
Who should avoid LHA?
- Skip it if any of these apply: Fragile or Sensitive and Recent Facial or Laser. Go slowly with Prone to Redness, Dry or Itchy Patches and Recent Shave or Wax.
Is there a cosmetic limit for LHA?
- No. No cosmetic regulator in the United States, Canada, the European Union or Great Britain sets a maximum strength for it. That is a limit on the rules, not a signal to use more.
Related ingredients#
How we check this#
Everything on this page traces to the sources listed below — regulators' own publications and published studies. Where the evidence does not answer a question, it is left unanswered.
Our review is AI-assisted and is not a named expert's opinion. Last reviewed August 6, 2026.
Think something here is out of date or wrong? Email us at wiki@skinintelligence.ai with your reasoning and where you read it. We read what people send, and we update the page when the sources support it.
Regulators and official bodies · 11
- S1Johnson W Jr, Bergfeld WF, Belsito DV, Klaassen CD, Liebler DC, Marks JG Jr, Peterson LA, Shank RC, Slaga TJ, Snyder PW, Fiume M, Heldreth B. Safety Assessment of Capryloyl Salicylic Acid as Used in Cosmetics. Int J Toxicol. 2024 Aug;43(3_suppl):92S–108S. PMID 38465458.
- S16FDA. OTC Monograph M006: Topical Acne Drug Products for Over-the-Counter Human Use. Posted Nov 23 2021 (Final Administrative Order OTC000013).
- S17FDA. Guidance for Industry: Labeling for Topically Applied Cosmetic Products Containing Alpha Hydroxy Acids as Ingredients. January 2005.
- S18FDA. Beta Hydroxy Acids (cosmetic ingredient information page). fda.gov/cosmetics/cosmetic-ingredients/beta-hydroxy-acids.
- S19Health Canada / NNHPD. Acne Therapy monograph. webprod.hc-sc.gc.ca/nhpid-bdipsn.
- S20Health Canada / NNHPD. Anti-Dandruff Products monograph. webprod.hc-sc.gc.ca/nhpid-bdipsn.
- S21Cosmetic Ingredient Review. Safety Assessment of Salicylic Acid and Salicylates as Used in Cosmetics — Final Amended Report, April 2019. cir-safety.org/sites/default/files/salicy042019FAR.pdf.
- S22Health Canada. Cosmetic Ingredient Hotlist: Prohibited and Restricted Ingredients, 2025 edition.
- S23Commission Regulation (EU) 2019/1966 amending Annexes II, III and V to Regulation (EC) No 1223/2009. EUR-Lex CELEX:32019R1966.
- S25Regulation (EC) No 1223/2009 as retained in UK law. legislation.gov.uk/eur/2009/1223.
- S26UK OPSS Scientific Advisory Group on Chemical Safety. SAG-CS Opinion 05: Salicylic acid restrictions in cosmetic products..
Studies and references · 20
- S2Zeichner JA. The Use of Lipohydroxy Acid in Skin Care and Acne Treatment. J Clin Aesthet Dermatol. 2016 Nov;9(11):40–43. PMID 28210389.
- S3Saint-Léger D, Lévêque JL, Verschoore M. The use of hydroxy acids on the skin: characteristics of C8-lipohydroxy acid. J Cosmet Dermatol. 2007 Mar. PMID 17348998.
- S4Bissonnette R, Bolduc C, Seité S, Nigen S, Provost N, Maari C, Rougier A. Randomized study comparing the efficacy and tolerance of a lipophillic hydroxy acid derivative of salicylic acid and 5% benzoyl peroxide in the treatment of facial acne vulgaris. J Cosmet Dermatol. 2009 Mar. PMID 19250161.
- S5De Cruz R, Nguyen R, Chen P, Kerob D, Gebauer K, Willems A, Tong P, Lee M. From Monotherapy to Adjunctive Therapies: Application of Dermocosmetics in Acne Management Across Australia and New Zealand. Australas J Dermatol. 2025 Jun. PMID 40019045.
- S6Pierard GE, Rougier A. Nudging acne by topical beta-lipohydroxy acid (LHA), a new comedolytic agent. Eur J Dermatol. 2002 Jul-Aug;12(4):XLVII–XLVIII. PMID 12120612.
- S7Li S, He X, Zhang Z, Zhang XS, Niu YG, Steel A, Wang HT. Efficacy and safety of a facial serum and a mask containing salicylic acid and lipohydroxy acid in acne management: A randomized controlled trial. J Cosmet Dermatol. 2023 Sep;22(9):2502–2511. PMID 36999489.
- S8Towersey L, Correia P, Fajgenbaum Feiges M, Euzébio Gonçalves Junior J, Sant'Anna B, Kerob D, Le Floc'h C. Assessment of the Benefit of a Deep Cleansing Gel Containing Salicylic Acid 2%, Zinc Gluconate 0.2% and Lipohydroxy Acids 0.05% in Patients with Mild to Moderate Truncal Acne. Clin Cosmet Investig Dermatol. 2023. PMID 36698447.
- S9Sitohang IBS, Norawati L, Yenny SW, Kusumawardani A, Murlistyarini S, Setiawan SV, Kekalih A, Riany G, Kerob D. Effectiveness and Safety of a Dermocosmetic Cream as an Adjunct to Adapalene for Mild and Moderate Acne in Indonesia. Clin Cosmet Investig Dermatol. 2024. PMID 39430644.
- S10Bouloc A, Roo E, Imko-Walczuk B, Moga A, Chadoutaud B, Dréno B. A skincare combined with combination of adapalene and benzoyl peroxide provides a significant adjunctive efficacy and local tolerance benefit in adult women with mild acne. J Eur Acad Dermatol Venereol. 2017 Oct. PMID 28573779.
- S11Dal Belo SE, Kanoun-Copy L, Lambert C, Cornillon C, Muller B, Jouni H, Moreau M, Palamarchuk I, Kerob D, Aguilar L. Efficacy of a multitargeted, salicylic acid-based dermocosmetic cream compared to benzoyl peroxide 5% in Acne vulgaris. J Cosmet Dermatol. 2024 Mar. PMID 37941097.
- S12Oresajo C, Yatskayer M, Hansenne I. Clinical tolerance and efficacy of capryloyl salicylic acid peel compared to a glycolic acid peel in subjects with fine lines/wrinkles and hyperpigmented skin. J Cosmet Dermatol. 2008 Dec. PMID 19146601.
- S13Chen X, Wang S, Yang M, Li L. Chemical peels for acne vulgaris: a systematic review of randomised controlled trials. BMJ Open. 2018 Apr 28. PMID 29705755.
- S14Bjerring P, Draelos ZD, Fabi SG, Goodman GJ, Hau KC, Haus A, Heydenrych I, Kim J, Lin LC, Sayed K, Sundaram H, Tsubouchi R, Wu Y, Brieva P, Choudhary H, Xiang LF. International Expert Consensus on Integrated Skincare Active Ingredients for Pretreatment and Posttreatment Use With Medical Aesthetic Procedures. J Cosmet Dermatol. 2026 May. PMID 42087526.
- S15Piérard GE, Kligman AM, Stoudemayer T, Lévêque JL. Comparative effects of retinoic acid, glycolic acid and a lipophilic derivative of salicylic acid on photodamaged epidermis. Dermatology. 1999;199(1):50–53. PMID 10449958.
- S24CosmileEurope. Capryloyl Salicylic Acid INCI entry.
- S27Seite S, Rougier A, Talarico S. Randomized study comparing the efficacy and tolerance of a lipohydroxy acid shampoo to a ciclopiroxolamine shampoo in the treatment of scalp seborrheic dermatitis. J Cosmet Dermatol. 2009 Dec. PMID 19958427.
- S28Roberts DW, Aptula AO. Contact allergy to capryloyl salicylic acid: a mechanistic chemistry and structure-activity perspective. Contact Dermatitis. 2015 May;72(5):347–351. PMID 25720316. Commenting on: de Groot A, Rustemeyer T, Hissink D, Bakker M. Contact allergy to capryloyl salicylic acid. Contact Dermatitis. 2014 Sep;71(3):185–187. PMID 25155078. Also: González-Pérez R, Carnero-González L, Martínez-González MI. Allergic Contact Dermatitis Due to Capryloyl Salicylic Acid. Actas Dermosifiliogr. 2016 Oct;107(8):694–695. PMID 27154246.
- S29Draelos ZD, Shalita AR, Thiboutot D, Oresajo C, Yatskayer M, Raab S. A multicenter, double-blind study to evaluate the efficacy and safety of 2 treatments in participants with mild to moderate acne vulgaris. Cutis. 2012 Jun;89(6):287–293. PMID 22838094.
- S30Baumann LS, Oresajo C, Yatskayer M, Dahl A, Figueras K. Comparison of clindamycin 1% and benzoyl peroxide 5% gel to a novel composition containing salicylic acid, capryloyl salicylic acid, HEPES, glycolic acid, citric acid, and dioic acid in the treatment of acne vulgaris. J Drugs Dermatol. 2013 Mar. PMID 23545907.
- S31Ly S, Kamal K, Manjaly P, Barbieri JS, Mostaghimi A. Treatment of Acne Vulgaris During Pregnancy and Lactation: A Narrative Review. Dermatol Ther (Heidelb). 2023 Jan. PMID 36447117.







